Lighting device



3 7 1.". 2 3 6 1l N E H o c H.

June 14. 1927.

LIGHTING DEVICE Filed Sept. 2B, 1925 InvINGy n. COHEN,` or

PATENT y oFlgicE.

CHICAGO, ILLINOIS, AsjsIGNoRoE CNE-HALE To IRWIN n. GROAK, oF CHICAGO) ILLINOIS. f t

y LIGHTING DEVICE.

Application flied September 28, 192.5. Serial No. 5897'0l l 'These improvements 'willV probably `find their most usual application in what is known asa spot-lightfor automobiles, thev same being an auxiliary lighting unit mountednear the drivers Vstation and for directional movement. Itis old to provide aspotlightsecured either to the frame of the wind shield or to the glass panel of the wind shield at an opening therethrough.

lo The present improvements have for their prime object the provision of a lighting uniti .adaptable to such'uses as thespotelight mentioned and according to "which the several lamp members may be readily applied to and i5 removed from the lamp mounting to facili e tate assemblingand also the ready removal "of .the unit at times` when ltsuse v1s not desired `and toprovidefa construction whereby suclr lamp members removed from the 20 mountingv maybereadil V y togetherto forma porta `may' be 'carried hand and used for locat- "igtrouble about the automobile or for other y purposes; and to provide inthat connection also means for clamping the 'lamp device proper uponfany appropriate part while re-"' vpair operations',"for instance, are being conf ducted; andto provi-de such advantages in a lighting device` of simple construction and of substantially few parts. Other objects and advantageswill appear hereinafter. t In the drawings, Figure v1 is a side elevation of the device as mounted upon whatwe will assume to be the, glass panel of an auto-` mobile wind shield,and showing also'a: con-L tainer for a supplyof flexible wire; Fig.

, .2 isl a fragmentary medial` longitudinal "verl `tical sectionthroughfthe lamp jm'emb'ers ofy 4.0 Fig. l; Fig. 3- is a transverse sectional view `on `the Aline 3-`-3 fof Fig.1;`A and Fig. 4 is a fragmentary side view of the adjacent ends of thetwo` lamp members separated `from w each other. y t y Referring to Fig. l, itisold to provide a ball-and-socket universal joint 'mounting -including a ball as 10, whichv is ordinarily of hard rubber, afront clamping member 11?,

a locking nut 12 on the annular stem 13 rear socket member 14 held .byscrews as 15 Vupon.` the `projection 13. Y According to this construction the ball may turn in theassociated mounting parts. A present variation united operatively le lamp unit which integral with. the front member l1, Vand a fromwhat is old with respe'ct'fto the ball Y lO'is inthe provision of a"cylindrical'hole4 ldiametrically through the 'ball to accommo'date' the ends of the novelflamp members used in the presentconstruction. i i

From Fig. l it will appear that I provide two lamp members 2O and' 2l directedV toabutting each other e'ndto end. These are cylindrical kmembers, the outer shells of which are formed of tubing of a common diameter, and when assembled asinFig. 2their abutting ends meet `apprdximately midway of the ball 10, there shownAY by 4dotted lines. Collars22 and 23 held' by screws upon the lamp members 20 andf21` respectivelyV abut flattened surfaces of the ball' 10, and since 'f wards eachother, and, as shown in Fig. 2,f

these collars are adjustable as by screws 22E*r y and 23alrespectively, a snugad-justmerit may be made with the ball to `provide the desired; tightness and solidity` of the connection.

open" at 2l [to provide yav socketI for the base .of the lamp 25 positioned'within the "lantern body.` `26 secured upon the front lend of the Vmember 20. The rear fend of a flexible cable, which may extendVV into a receptacle 28 having a spool 29 for a 'supply ofs'uchcable and whichre'ceptacle 28 may be located under the dash of the automobile orat any other convenient place. Y I FromFig. 2 it, will bel noted that within the lamp ymember 2O there is a piece of insulation 30 in whichare held and through whichv extend contact members 3l and 32 projecting forward, the front ends of these Contact members'being bored to provide for the reception of contact points 3l andA vbll springlpressed"forward as shown so' as. to make contact with the terminals 25l andr25" of -theincandescent lamp base 25.

The lamp member 2l is vCorrespondin'gly provided withwinsulation 35 in which are rigidly secured sockets 37 and 38 adapted to interengage with the contactplug elements 3l vand 32 respectively, thelead wires from the cables beingy connected as by soldering to rearwardly-projecting stems of the sockets respectively. l Y f From the construction thus far described it will be clear that current the battery 39 1) will flow' through the cable or lead wires 27 in'a :circuit through Vthe interengaging connection elements and vthrough the incandescent bulb. A Y From Fig. lit will be noted that the lamp The lamplmember 2O has its front end the lamp memberV 21 is open to provide for the reception of lead wires 2,7,Wshown asv supplied by 11ol f v member 2O has fixed to it a tubular metallic member having` an extension 41 provided at its :tree end With a notch 42. From Fig. 2 it will be observed that these parts 40 and 41 interfit with the cylindrical sleeveo'f the lamp member 21, and also that the inf sulation 35 prevents contact oi these parts 40 and 41 with the socket elements-Wand d8.Y From Figs. 1 and 4 it Will be noted that V the lampnien'iber21 is provided With'a slot`44, and Fig. 3V shows a headed bolt in this slot, u1@ hun havinga knuridmc 46 for easy manipulation.

`From Fig. 3 it Willbe'cleiir tha'twhen the nut 46'is retracted 4the bolt may bodily be i moved so as to come outottlie notch 42, re-

with the mountingby simply inserting the leasing the lampinember 2O 'from the 'lamp member 21, and also that W'henit is desired to reconnect these lamp members i't is only necessary to telescope their ends together andsiving the bolt 45 around so that it enters the notch 42, whereupon a tightening ot the nut 46 vholds the tivo rmembers rigidly 'together. `According to this construction the lanip parts may` very readilyl be assembled Yliront member into :the hole oi the ball 10, insorting the rear member into .the hole from the opposite direction, thereby telescopingin end-to-end relation the two laiip members, and thereupon fastening 'theparts together by means of .the bolt 4 5.; `andthat by merely reversing these opeirations th'e tivo lamp' members may very readily be removed from the mounting. i

An important feature 'in this connection is that when the lamp members are thus removed rom the mounting they maybe reassembled as 4shoivn in Fig. 2e`i'ljfec'ti'ng the provision of apiortable lampn''hichmay be c'arried around Aivithin the limits Voi thel flexible cable for such various p "urposesfas automobilists 'are constantly finding When on 'the road at night. Y

I provide also abracket for securing the lamp in some fixed position, asupon a fender' of the automobile, ivhich is ivell illustrated in Fig. 3. lIt comprises `iirst a' ring-like clamping member 50 Ipassing ai'oundV the body of the lamp member 21 andheld bound upon it by the bolt 51. The same bolt holds" also the intermedi-ate bracket to which is secured as by the bolt vandnut 53 a basemember 54 to Which is Vhinged yat 55 and 5 6 a pair oiclamping arms 57fand 58 respectively adapted to be drawntogether by nuts 5 9 and 60 on the bolt 61, with the spring62adapted to push these aivsw'( and 58 apart Whenthe nuts 59 and'oQar'eJ retraeted.- The mounting of the bracket'52 on vthe bolt 51permit sit to be swung into the relative position shown by full lines in Figs, 1 and 2,l in` which posi-tion` it constitutes a handle Whichthe operator grasps in movingthe lamp about directionally `ivhen mounted as in Fig. 1. The dot-ted 3. 'In an automobile ispotilight, the com'-V line positions oFig.- Qshow how this clamping member may be moved into various relative positions with respect to the body of the lamp asa Whole to directthe lightup'on particular "wordt after vit has been 'aiiXed to some other part, and the bolt connection 53, Fig. 3, permits the lamp as a Whole to be turned 'about `on`-th`at axis also. It is therevfore possible to move the lamp about substan an ed asa trouble finder, providing unusual flexibility in that respect and a consquent advantage to the user.

The end ofthe lamp member 22 is shown as being closed by a cap 6 0 provided With'an 'iusiilating button (51.

i emplate as being included in these i'ijn'proieniei'fts such varatioiis and departures Atrom what is herein specifically illustrated and described as tall Within the scopeoft-he aiipended claims.

'l clain'i: y l. In a lamp construction the `combination of a pa'ir of lamp members one of ivhich comln'ises a socketiorho'lding a lamp, each o lamp member having electricalcontacts 1n- 'terengaging with those of fthe other tvhen the vlamp members are applied 'to each 4other end `to end, and readily releasable' catch means independent otsaid contacts forholdi i-n'gthe lamp members readily releatsable in endto end relation.v

2. 'In spot-light construction, the combination of a mounting, a lamp member carfordirectional movement-,means for `hol`di'n" the la'fmp member vreiiidily "removableiv'thi'n the mounting, and a 'oombined handle 'and clamping membercarried bysaid lamp lnllnber for moving the linp member dictionally in the mounting and for securing the lamp member upon jsome other object whenv removed' from the mountbination of ja mountiiijgfhaviiig means for securing it upon a support and having a hole therethrough, a pa-ir of laiiip' members carried' by' said mounting in 'said hole, one

'of said lamp members having a socket for a lampfand projecting "on one side of the mounting, they other of 'said lamp' members being adapted to receive circuit Wires and projecting on the other side of vthe mounting, interengagingielectric lcontacts carried' by said lamp members to'complete a circuit tlfirougha la.1'np .in 'said socket, and means for' holdingsaid larnp' members readily releasablytogether `whereby upon release of tially as o`n a universal joint Whenit is saidholdingr means fthe lamp membersmay be Withdra'ivnfout offsfaid .hole Afrom opposite' end portionsfthereof respectively 'and connected operatively together free of the mounting. y

4. a lighting device of the Vcharacter" described, the combinationof 4a "mounting including amember movable fordi'rectingV the light, lsaid movable `member having a hole therethrough, and a pair of lamp members readily insertable finto and removable romopposite ends of said hole and adapted substantially to abut each other end to end, one of said lamp members having a lamp socket, the other having vmeans for leading Wires for electric current thereinto, said lamp members having interenga ing contacts for completing a .circuit t rough a lamp in said socket, and readily operableA coacting means carried by said lamp members for holding them operatively together when normally positioned end to end in said hole, the construction and arrangement being such that by releasing said coacting holding` means said lam drawn out of said connected together mounting v v 5. In a lighting device ofthe character described, the combination of a mounting including a ball member movable for directing the li ht, said ball member havin@r a hole theret lamp members readily insertable into and removable from opposite ends of said hole and substantially to abut each other end to end, one of said lamp members having a lamp members may be withhole and be `operatively7 independently of said rough, and a pair of cylindrlcal mally positioned end to endin said hole, the

construction land arrangement being such that by releasing saidv coacting holding means said lam members may be Withdrawn out of said hole and be operatively connected together independently of said mounting.

'6.'In spot-light construction, the combi- 1 nation of a mounting including a member having directional movement, .a lamp mem-4 ber carried thereby for directional movement, means for holding the lamp memberv readily a clamping member carried by said lamp member for securing the lamp member upon some other yobject when removed from the mounting,therebeing a connection between said clamping member vand said lamp meme.

removable upon -the mounting, and .f

ber providing for moving the lamp member with respect to the clamping member substantially as on a universal joint.

IRVING H; COHEN., 

